Woo Sung Ahn, MD - Medicare Internal Medicine in Lakewood, CA

Woo Sung Ahn, MD is a medicare enrolled "Internal Medicine" physician in Lakewood, California. He graduated from medical school in 1976 and has 48 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 20145 S Pioneer Blvd, Lakewood, California. You can reach out to his office (for appointments etc.) via phone at (562) 916-5020.

Woo Sung Ahn is licensed to practice in California (license number A51408) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1396807806.

Contact Information

Woo Sung Ahn, MD
20145 S Pioneer Blvd,
Lakewood, CA 90715-1051
(562) 916-5020
(562) 916-5022



Physician's Profile

Full NameWoo Sung Ahn
GenderMale
SpecialityInternal Medicine
Experience48 Years
Location20145 S Pioneer Blvd, Lakewood, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Woo Sung Ahn graduated from medical school in 1976
  NPI Data:
  • NPI Number: 1396807806
  • Provider Enumeration Date: 12/14/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 6002851268
  • Enrollment ID: I20091111000572

Medical Identifiers

Medical identifiers for Woo Sung Ahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396807806NPI-NPPES
00A514080OtherCAMEDICAL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A51408 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Woo Sung Ahn allows following entities to bill medicare on his behalf.
Entity NameWoosung Ahn, M.d., Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285766253
PECOS PAC ID: 3678611647
Enrollment ID: O20091111000587

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Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Woo Sung Ahn is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Woo Sung Ahn, MD
20145 S Pioneer Blvd,
Lakewood, CA 90715-1051

Ph: (562) 916-5020
Woo Sung Ahn, MD
20145 S Pioneer Blvd,
Lakewood, CA 90715-1051

Ph: (562) 916-5020

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Internal Medicine Doctors in Lakewood, CA

Dr. Joel Douglas Epstein, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3650 South St, Suite 308, Lakewood, CA 90712
Phone: 562-633-2275    Fax: 562-633-2579
Scott A Gordon, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5750 Downey Ave, Suite 100, Lakewood, CA 90712
Phone: 562-630-3105    
Sultanali Alidina, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3300 E South St, Suite 209, Lakewood, CA 90805
Phone: 562-630-3434    Fax: 562-630-5240
Dr. Kyaw Moe, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3650 South St, Suite 101, Lakewood, CA 90712
Phone: 562-286-6466    Fax: 562-286-6465
Dr. Milan Gaurang Rawal, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3650 South St, Suite 310, Lakewood, CA 90712
Phone: 562-531-1980    Fax: 562-531-7952
Khalid Saeed, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5750 Downey Ave, Suite 100, Lakewood, CA 90712
Phone: 562-630-3105    
Kartik Thaker, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3650 E South St, Suite # 210, Lakewood, CA 90712
Phone: 562-630-2360    Fax: 562-633-0510

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